Bobbin-holder.



PATENTED APR. 30,1901.

F. POPE.

BOBBIN HOLDER.

APPLIGATION FILED JULYIL1905.

FRANK POPE, OF KANKAKEE, ILLINOIS.

BOBBlN-HOLDER.

Specification of Letters Patent.

Patented April 30, 1907.

Application filed July 11, 1905. Serial No. 269,180.

To all "who/it (It may concern:

Be it known that I, FRANK Porn, residing at Kankakee, Kankakee county, Illinois, have invented a certain new and useful Bobbin-IIolder, of which the following is a specification.

My invention relates to machines employed for spinning yarn and the like and particularly to the bobbins thereof, the object of my invention being to provide an eflicient and reliable means for holding the bobbins to the spindles, but permitting them to be readily removed at the will of the operator.

IIeretofore, and as is now the common practice, bobbins are held to their spindles by means of what is commonly designated packing, which is formed from some of the yarn itself wound tightly upon the spindle and over which the bobbins are inserted or pressed and by which they are held to the spindles. factory in use, inasmuch as the bobbins are liable to slip, owing to the lack of uniformity in the size of the tapered longitudinal bore or passage through the bobbins, with the result that, in case the bobbin does not 'I it the packing properly, the bobbin is liable to be loosely and imperfectly wound, besides which the spinning is imperfect and the yarn or thread not spun sufliciently or hard enough. A further objection to the old method arises from the fact that owing to the presence of said packing on the spindles, it is extremely diflicult to remove from the spindle below the bobbins the usual mappings which there accumulate and represent the held ends of the yarns or threads, it being now the common practice to cut these accumulations (also some times called packing) inasmuch as they cannot be withdrawn upwardly from the spindles, owing to the presence of the packing for holding the bobbins on the spindles. Means have also been provided on the spindles for holding the bobbins, the same comprising a socket held to the spindle and arranged to receive the lower end or base of the bobbin, but such means are objectionable in actual practice, as they interfere with the starting of the bobbins by catching the yarn and also injure the operators fingers when it is necessary to stop a bobbin by holding the same.

My invention is designed to avoid these di'fliculties and to this end I provide each bobbin with means for engaging a groove intermediate the length of its spindle to hold said parts together, with the result that the This arrangement is not satisso called packing may be dispensed with and the accumulated wrappings may be bodily removed from the spindles by simply slipping such wrappings upwari'lly thereon, after the bobbin has been removed.

Another resulting advantage resides in the fact that all bobbins 'fit the spindles uniformly and positively, with the result that the bobbins are uniformly and perfectly wound and the yarn properly spun, so that the output of the machine is increased and the usual waste occasioned at the winding machines, due to imperfect bobbins, is rcduced to a minimum. F urthermorc, the advantages extend even to the knitting machines, owing to the production of better spun yarn and better wound bobbins.

Other features of advantage and utility of my bobbin holder will be apparent from the description hereinafter given.

In the drawing, Figure 1 is a side elevation of a spindle and its bobbin in place thereon Fig. 2 a central longitudinal section of a bobbin provided with one of my holders and illustrating the manner of holding the bobbin to its spindle; Fig. 3 another section of a bobbin illustrating a modified form of construction oi holder; and Figs. 4 and 5 perspectives of the two forms of holders illustrated in Figs. 2 and 3, respectively.

Similar letters of reference refer to corresponding parts in the several figures.

In Fi 1 I have illustrated the usual or conventional form of spindle 1 and bobbin 2 which, as is well known, has a longitudinal tapering bore correspomling to the taper of the spindle, the bobbin being inserted upon its spindle, substantially the distance illustrated in the drawing.

Referring to the form of bobbin holder illustrated in Figs. 2 and 4, the same comprises a tapering shell or sleeve 3 having, in the present instance, a longitudinal slot 3 for pro viding the required resiliency. This shell or sleeve is inserted or driven into the longitudinal bore or passage of the bobbin and by preference at the base thereof, as seen in Fig. 2. This holder may be formed in any suitable manner, but in the present instance, the same comprises a thin sheet of metal rolled up to the truncated conical form clearly illustrated in Fig. 1, the adjacent longitudinal edges thereof being separated sullicicntly to 'form said slot 3.

In order to absolutely prevent anypossibility of the bobbin working upwardly on its spindle, but not overcoming the application of positive force in doffing, the spindle is provided with a circular groove or notch 1 as illustrated in Fig. 2, which groove is en gaged by the upper edge of the holder 3, in the manner clearly illustrated in said figure.

Each bobbin is provided with a holder such as the one already described and each spindle will be provided with a groove to cooperate with the holder, with the result that when the bobbin is inserted upon its spindle and pressed down thereupon the same is held thereto by engagement of the holder or sleeve 3 with the groove in the spindle so that the bobbin is held to its spindle with a pressure or resistance sufficient for all purposes of spinning and winding but nevertheless permitting removal thereof in the operation known as doffing.

My bobbin holder may partake of other forms and arrangements, for instance, as illustrated in Figs. 3 and 5, the same comprises an externally screw-threaded sleeve 4 arranged to screw into the base of the bobbin. The upper or inner end of this sleeve which is somewhat reduced in diameter, is provided with one or more longitudinal cuts or slots 4 in the present instance there being four of such slots, thereby providing four spring pressed arms 4 which are arranged to engage and clamp the spindle.

By preference, the spindle is also provided with a circular groove 1, into which the upper ends of the spring arms i snap when the bobbin has reached its proper distance of insertion upon the spindle, with the result that the bobbin is held on the spindle except as against the application of positive force employed in the doffing of the bobbins. By preference, this form of bobbin holder is made from a solid piece of steel, which is turned down and bored to the form shown more clearly in Fig. 5, the same being preferably, though not necessarily, counterbored so as to leave a thickened portion 4 at the upper edges of the spring arms in order that the latter may more effectually snap into the groove and be retained therein.

By the use of my invention, I am enabled to provide old bobbins, as well as new ones, with means for holding the same in proper manner upon the spindle and to thereby dispense with the usual packings, with conse- Epent advantages resulting from the fact,

st, that the bobbins are properly held to the spindles, and second, that the spindles are free from packing, so as to permit the usual wrappings to be bodily removed from the spindles without any cutting of such wrappings. Moreover, inasmuch as the bobbin holder is entirely within the bobbin, there is no possibility of the holder catching the yarn or injuring the fingers of the operators when it is desired to temporarily stop any particular bobbin. Furthermore, there [is no material variation in the holding or clamping effect between the bobbins and the spindles, so that the bobbins are properly and tightly wound and the yarn'also properly spun, so that the considerable waste oc casioned by the imperfect and soft winding of bobbins is avoided.

Again, my bobbin holder subserves another purpose or function in addition to that of holding the bobbin upon the spindle, inasmuch as such holder is capable of preventing the bobbins from being pressed or forced too far down upon the spindles and thereby serving as a protector against the breaking or splitting of the wooden bobbins which might otherwise result.

I claim:

1. In combination with. the usual form of spindle for spinning yarn but having a groove transverse of its longitudinal axis, a spinning bobbin having in the line of its longitudinal. bore or passage means for engaging said groove which provides a shoulder With Which such means cooperate; substantially as described.

2. In combination with the usual form of spindle for spinning yarn but having a groove transverse of its longitudinal axis, a spinning bobbin, and a resilient device secured within the longitudinal bore or passage thereof and arranged to clamp the bobbin-to the spindle, the said groove in the spindle providing a shoulder with which said device cooperates; substantially as described.

3. A bobbin holder comprising in connection with the bobbin and with a spindle having a groove, a resilient sleeve fitted within the longitudinal bore or passage in the bobbin and arranged to engage the groove of the spindle and thereby clamp the bobbin thereto; substantially as described.

4. A bobbin holder comprising in connection with the bobbin and with a spindle having a groove, a resilient sleeve fitted within and located at the base of the longitudinal bore or passage in the bobbin and arranged to co-operate with the groove of the spindle which provides a shoulder engaged by the sleeve; substantially as described.

5. A bobbin holder comprising in connection with the bobbin and with a spindle having a groove, a sleeve secured in the longitudinal bore or assage of the bobbin and having a longitu inal slot for resilient action in the clamping of the spindle, said sleeve being arranged to engage said groove which provides a shoulder for such purpose; substantially as described.

6. A bobbin holder comprising in connection with the bobbin and with a spindle having a circumferential groove a sleeve having external screw threads for securing the same in the longitudinal bore or passage of the bobbin, said sleeve being resilient and arranged to engage the groove of the spindle and thereby clamp the bobbin to the spindle; substantially as described.

7. A bobbin holder comprising in connection with the bobbin and With a spindle having a circumferential groove a sleeve having external screw threads for securing the same l in the longitudinal bore or passage of the bobbin, said sleeve having a series of longitudinal slots forming resilient arms or prongs engaging said groove and thereby clamping the bobbin to the spindle; substantially as described.

8. The combination, with a bobbin and its spindle having a notch or groove intermediate its length, and transverse of .its axis, of a bobbin holder comprising a resilient sleeve arranged in the longitudinal bore or passage of the bobbin and adapted to engage said notch or groove in the spindle; substantially as described.

9. The combination, with a bobbin and its spindle having a notch or groove intermediate its length, and transverse of its axis, of a y bobbin holder comprising a resilient sleeve secured within and at the base of the longitudinal bore or passage in the bobbin and having longitudinal slots to form resilient lingers engaging said notch to clamp the bobbin to the spindle with a yielding pressure; substantially as described.

10. The combination, with a bobbin and its spindle having a notch or groove intermediate its length, and transverse of its axis, of a bobbin holder comprising a resilient sleeve secured within the longitudinal bore or passage ,in the bobbin and provided with a plurality of longitudinal slots to form resilient lingers, the outer ends of which are thickened and arranged to snap into the notch or groove on the spindle; substantially as described.

F ANK POPE.

lVitnesscs:

S. ALPINER, B. W". ALPINER. 

